Yet another top science adviser to President Trump has resigned, this time in the wake of Trump’s disastrous comments on the unrest in Charlottesville, Virginia.

UC Berkeley professor Dr. Daniel M. Kammen served as the Science Envoy to the State Department up until he heard Trump’s “many sides” comments on the violence in Charlottesville which left a woman dead and dozens injured, leaving him disgusted by Trump’s attempts to equate counter-protesters with the white supremacists they were opposing,

In scripted remarks, Trump walked the statementback by condemning the neo-Nazi, Klu Klux Klan, and white supremacists but then soon doubled down, saying there were “very bad” people on both sides.

“Particularly troubling to me is how your response to Charlottesville is consistent with a broader pattern of behavior that enables sexism and racism and disregards the welfare of all Americans,” Kammen wrote in his letter.

When Kammen posted his letter to Twitter, some noticed that it contained a hidden message, with the first letter of each paragraph spelling out the word “IMPEACH.”

Another reason Kammen cited for his resignation was Trump’s withdrawing the U.S. from the Paris Climate Accord, saying that the President’s “decision to abdicate the leadership opportunities and job creation benefits” of the Paris Agreement are “not acceptable.”

Several science advisers have already resigned from the Trump administration over what they see as the White House’s anti-science stance. In addition, CEOs have resigned from White House business councils along with the entire Presidential Committee on the Arts and Humanities — whose resignation letter formed the word “RESIST” with the first letter of each paragraph.